Standards Development

Scope

Replacement:

This document applies to automatic electrical motor-starting relays

 intended to control the start windings of single phase motors

 for use in, on, or in association with equipment for household appliance and similar use;

NOTE 1 Throughout this document, the word "equipment" means "appliance and equipment" and “control” means “motor-starting relays”.

EXAMPLE 1  Motor-starting relays for appliances within the scope of IEC 60335.

 for equipment that is used in building automation within the scope of ISO 16484 series and IEC 63044 series (HBES/BACS);

 for equipment that is used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications;

EXAMPLE 1 Controls for commercial catering, heating and air-conditioning equipment.

 Used in, on, or in association with equipment that are smart enabled;

EXAMPLE 2 Smart grid control, remote interfaces/control of energy-consuming equipment.

 that are AC or DC powered with a rated voltage not exceeding 690 V AC or 600 V DC;

 used in, on, or in association with equipment that use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof;

 utilized as part of a control system or controls which are mechanically integral with multifunctional controls having non-electrical outputs;

 using NTC or PTC thermistors, requirements for which are contained in Annex J;

 that are mechanically or electrically operated, responsive to or controlling such characteristics as current and voltage, or combinations thereof;

 as well as manual controls when such are electrically and/or mechanically integral with automatic controls.

NOTE 2 Requirements for manually actuated mechanical switches not forming part of an automatic control are contained in IEC 61058-1-1.

This document applies to

– the inherent safety of motor-starting control, and

– functional safety of motor-starting control and safety related systems (when required),

– controls where the performance (for example the effect of EMC phenomena) of the product can impair the overall safety and performance of the controlled system,

– the operating values, operating times, and operating sequences where such are associated with equipment safety.

– Motor-starting controls incorporating electronic devices, thermistor elements, thermal elements or magnetic elements.

This document specifies the requirements for construction, operation and testing of automatic electrical motor-starting relays used in, on, or in association with an equipment.

This document does not

 apply to motor-starting relays designed exclusively for industrial process applications unless explicitly mentioned in the relevant equipment standard. However, this document can be applied to motor-start relays for equipment intended specifically for industrial applications in cases where no relevant safety standard exists.

 take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer will apply.

 Apply to general purpose relays or to contactors and motor starters of the type covered by IEC 60947 series.

 Apply to mechanically operated motor-starting devices.